Rolling mill guide



y 7, 1957 H. BOSTOCK ROLLING MILL GUIDE Filed Feb. 6, 1952 1 INVEN TOR: BY Hmmw 505mm,

///5 flfamey United States Patent ROLLING MILL GUIDE Howard Bostock, Pittsburgh, Pa., assiguor to United States Steel Corporation, a corporation of New Jersey Application February 6, 1952, Serial No. 270,227

1 Claim. (Cl. 80--51) This invention relates to rolling mill guides, particularly for reversing type mills which roll wide-flange beams.

An object of the invention is to provide an improved guide which is of simplified construction and has fewer parts and can be installed or adjusted more quickly and easily than previous guides for this purpose.

A further object is to provide an improved guide that does not cause cobbles in the mill and that prolongs roll life by removing from the rolls pieces of steel or scale picked up in a rolling operation.

In accomplishing these and other objects of the invention, I have provided improved details of structure, a preferred form of which is shown in the accompanying drawing, in which:

Figure 1 is a horizontal sectional view of a rolling mill which is equipped with an improved guide embodying features of the present invention, the view being taken on line I-I of Figure 2;

Figure 2 is a vertical longitudinal sectional view taken on line II--II of Figure l; and

Figure 3 is a vertical cross sectional view taken on line III-III of Figure 2.

The drawing shows part of a large reversing mill, which includes two sets of housings and 12 and two sets of shape rolls 13 and 14 mounted in the respective housings and situated rather closely together for tandem operation. Tie bars 15 extend between each set of said housings for holding them in position. The mill is constructed to roll wide fiange beams B, which must be guided as they travel between the two sets of rolls.

The guide of the present invention comprises upper and lower holders 16 and 17 which are supported on the tie bars 15. The support means for the upper holder 16 includes an upstanding leg 18 pivoted to one of the tie bars which extend between the housings 10 and a hookshaped leg 19 resting on one of the tie bars which extend between the housings 12 (Figure 2). The support means for the lower holder 17 includes a pair of depending legs 20 whose underfaces have notches which receive two of the tie bars. Each side face of each holder 16 and 17 carries a pair of adjusting screws 21 which abut the inner walls of the housings for centering the guide laterally with respect to the rolls 13 and 14.

The underface of the upper guide holder 16 contains a longitudinal groove 22 (Figure 3). A pair of upper guide bars 23 of T-shape in cross section are received with a sliding fit in said groove and each is held by a separate pivot pin 24. Likewise the upper face of the lower holder 17 contains a groove 25 which receives lower guide bars 26 held by simliar pivot pins. The upper and lower guide bars terminate adjacent the upper and lower rolls and have stripper ends 23a and 26a which fit the curvature of the rolls. These stripper ends rest across the entire web-forming face of the respective rolls and serve also to remove any pieces of steel or scale picked up during a rolling operation. The pin 24 for each guide bar is situated to hold the bar in contact with its roll by gravity. Thus the pins for the upper guide bars 23 are situated adjacent the outer ends of the bars so that the heels of these bars serve as counterweights, while those for the lower guide bars 26 are situated adjacent the inner ends. These pivotal connections enable the guide bars to move vertically with vertical movement of the rolls during a rolling operation.

Referring to the cross sectional view of Figure 3, it is seen that the guide bars conform rather closely to the spaces between the flanges of the beam B and thus efiectually guide the beam between the two sets of rolls. For rolling beams of different cross-section, the guide bars are readily removable and replaceable with bars of other dimensions. It is necessary only to remove the pivot pins 24 to slip the guide bars out of the grooves in their respective holders, which operation can be performed quickly and easily.

While I have shown and described only a single embodiment of the invention, it is apparent that modifications may arise. Therefore, I do not wish to be limited to the disclosure set forth but only by the scope of the appended claim.

I claim:

In a rolling mill which includes two sets of housings and rolls arranged for tandem operation and tie bars connecting the housings of each set, the combination with said rolls of a guide comprising upper and lower holders supported on said tie bars and having opposed horizontal faces and cutouts extending a uniform distance vertically from said faces, a pair of rigid upper guide bars each having a continuous work engaging lower face and a rib extending vertically upward from its upper face and received in the cutout in said upper holder, a pair of rigid lower guide bars each having a continuous work engaging upper face and a rib extending vertically downward from its lower face and received in the cutout in said lower holder, stripper portions on the outer ends of each of said bars each contacting a different one of said rolls, the inner ends of the two upper bars and of the two lower bars being situated closely adjacent each other so that the upper bars and the lower bars extend substantially the full length of the respective holders and provide substantially continuous work engaging faces vertically spaced throughout their lengths from the horizontal faces of said holders, and removable means pivotally connecting the outer portions of said upper bars to said upper holder and the inner portions of said lower bars to said lower holder to bias the stripper portions of all four bars gravitationally into contact with the respective rolls, said bars being of uniform T-shape in cross section throughout their length apart from their stripper portions.

References Cited in the file of this patent UNITED STATES PATENTS 796,335 Johnston Aug. l, 1905 1,078,045 Griffiths Nov. 11, 1913 1,109,050 Dunn Sept. 1, 1914 2,006,729 Brauer July 2, 1935 2,040,979 Crozier et al. May 19, 1936 2,333,937 Kinter et a1. Nov. 9, 1943 2,486,310 McLeod et al Oct. 25, 1949 2,506,682 Norlindh May 9, 1950 

